`make-based`: Add `do_aarch64.sh` script to work for Python3 to work with `aarch64`

[razvand]

Add a do_aarch64.sh script for make-based/app-python3/ to make it work for ARM64 / aarch64.

See the do-sqlite-aarch64 script for Musl.

Make sure you validate the script with shellcheck.

See instructions here.

Hackathon points: 50